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Official data from INPI

PROCESSO PARA A OBTENÇÃO DE UMA DISPERSÃO COLOIDAL

PublicadaInvention Patent

Application data

Number

PI8805199

Type

Invention Patent

Filing

10/07/1988

Publication

05/23/1989

Progress at the INPI

  1. Filing10/07/88
  2. Publication05/23/89
  3. Examination06/25/91
  4. Allowance04/09/96
  5. Grant03/25/97
  6. Expired09/02/08

The letters patent expired on 09/02/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 05/23/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

R. C. (pessoa física)

FR

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Inventors

J. G. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

87 13953 · 10/09/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

05/23/1989

RPI 970

Pedido de patente depositado

#2.1

02/21/1989

RPI 957

Carta-patente expirada

#21.1

Patente extinta em 07/10/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

03/25/1997

RPI 1373

Deferimento

#9.1

04/09/1996

RPI 1323

Exigência - art. 36 da LPI

#6.1

02/21/1995

RPI 1264

Solicitação de exame técnico

#4.1

06/25/1991

RPI 1073

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